Zontes ZT 125-U1 MOT pass rate and common failures
Zontes ZT 125-U1 motorcycles pass the MOT 75.92% of the time, measured across 299 tests in the DVSA record. A further 5.69% passed only after a defect was put right at the test station.
What to check before the MOT
Built from this model's own failure record, not general advice.
- Start with missing - it accounts for 29.1% of failed tests on this model.
- Then check has a serious fluid leak and not working, the next two most common reasons.
- The most common advisory is excessively loose (9% of all tests) - not a failure, but money you will spend sooner or later.
- Average recorded mileage at test is 7,742 miles, which is the number to compare any advert against.
Pass rate by age
A single pass rate hides the most useful thing in this data: how the same model behaves at three years old and at fifteen.
| Age at test | Pass rate | Tests | |
|---|---|---|---|
| 3-5 years | 75.92% | 299 |
Why the Zontes ZT 125-U1 fails
Share of failed tests on this model where the item was recorded. One test can fail on several items, so the column does not add up to 100%.
| # | Item | Of failures | Tests | |
|---|---|---|---|---|
| 1 | Missing | 29.1% | 16 | |
| 2 | Has a serious fluid leak | 18.2% | 10 | |
| 3 | Not working | 16.4% | 9 | |
| 4 | The less effective brake control does not achieve an efficiency of 25% | 16.4% | 9 | |
| 5 | Not working on main beam | 14.5% | 8 | |
| 6 | Excessively binding | 10.9% | 6 | |
| 7 | Excessively loose | 10.9% | 6 | |
| 8 | Worn to excess | 10.9% | 6 | |
| 9 | Has excessive play | 9.1% | 5 | |
| 10 | Indicates excessive fluctuation of brake effort | 9.1% | 5 |
Most common advisories
Not a failure and not a legal requirement to fix - but an advisory that repeats year after year is money the next owner spends.
| # | Item | Of all tests | Tests | |
|---|---|---|---|---|
| 1 | Excessively loose | 9% | 27 | |
| 2 | Worn to excess | 8.4% | 25 | |
| 3 | Tread depth is below minimum requirements of 1.0mm | 6.4% | 19 | |
| 4 | Indicates excessive fluctuation of brake effort | 4% | 12 | |
| 5 | Has a serious fluid leak | 3.3% | 10 | |
| 6 | Noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition | 3.3% | 10 | |
| 7 | Excessively binding | 2.3% | 7 | |
| 8 | Less than 1.0 mm thick | 2.3% | 7 | |
| 9 | Sprocket excessively loose | 2% | 6 | |
| 10 | Tread not clearly visible | 1.7% | 5 |
Zontes ZT 125-U1 for sale
No Zontes ZT 125-U1 in stock at the moment - 3 other Zontes bikes are advertised.
Similar bikes compared
Models of comparable capacity, so the comparison means something.
| Model | Tests | Pass rate | Avg mileage | |
|---|---|---|---|---|
| Yamaha GPD125-A NMAX 125 · 125cc | 8,762 | 80.8% | 45,039 | |
| Piaggio VESPA 79-210cc · 79-210cc | 8,363 | 85.42% | 11,710 | |
| Honda WW · 125cc | 7,252 | 80.32% | 40,134 | |
| Honda WW 125 A-M · 125cc | 5,011 | 84.06% | 29,846 | |
| Honda GLR · 125cc | 4,737 | 79.99% | 14,642 | |
| Honda CBF 100-125cc · 100-125cc | 3,204 | 77% | 15,203 |
Source: DVSA MOT testing data, 2025 · updated Aug 2026 · licence and method